QUESTION 7 When excess magnesium was reacted with dilute sulphuric acid, the reaction was fast at first butgradually became slower and


7
When excess magnesium was reacted with dilute sulphuric acid, the reaction was fast at first butgradually became slower and finally stopped.Which of the following describe the reaction?A.B.The magnesium was used up.The sulphuric acid was used up.The temperature of the mixture decreased.The magnesium particles became coated with hydrogen gas.C.D.​


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